Lobster gauge



FIG. 1 is a front elevation view of the lobster gauge;

FIG. 2 is a left elevation view of the lobster gauge;

FIG. 3 is a bottom view of the lobster gauge;

FIG. 4 is a rear elevation of the lobster gauge;

FIG. 5 is a right elevation view of the lobster gauge; and,

FIG. 6 is a top view of the lobster gauge. 

The ornamental design for a lobster gauge, as shown. 